@inproceedings{improvingbeamsearchbyremovingmonotonic,
  title = {Improving Beam Search by Removing Monotonic Constraint for Neural Machine Translation},
  author = {Raphael Shu and Hideki Nakayama},
  year = {2018},
  booktitle = {ACL 2018 7},
  url = {https://aclanthology.org/P18-2054},
}